<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <style>
        .a1 {
            position: relative;
            width: 150px;
            height: 540px;
            font-size: 16px;
            letter-spacing: 3px;
            color: #333333;
            box-sizing: border-box;
            margin-right: 1px;
            cursor: pointer;
            background-color: pink;

            display: flex;
            align-items: flex-end;
        }

        .a2 {
            width: 100%;
            height: 540px;
            background-color: rgba(255, 255, 255, .7);
            transition: 0.8s height;
        }

        .a1:hover .a2 {
            height: 0;
        }

        p {
            position: absolute;
            width: 17px;
            top: 65px;
            left: 28px;
            text-align: center;
            font-size: 16px;
            color: #333;
            transition: 0.5s;
        }
    </style>
</head>

<body>

    <div class="a1">
        <div class="a2">
            <p></p>
        </div>
    </div>
</body>

</html>